subtract 10%iles -0.000313997   0.00624561    0.0116692    0.0172508
    0.0239887    0.0335655    0.0492172    0.0792294     0.170845
diff 10%iles   -0.0496254   -0.0230122   -0.0125122  -0.00540447  0.000665188
   0.00671625    0.0137591    0.0241671    0.0506535
stardiff 10%iles   -0.0287403   -0.0147280  -0.00793235  -0.00294496
   0.00143597   0.00578955    0.0107106    0.0174533    0.0321583
stardiff contour -excluded 0.005   -0.0287403    0.0321583